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Virtualization

ID	Contact Title	Contact Name	Country	Rating


1	Sales Agent	Matti Karttunen	Argentina	1 2 3 4 5
2	Marketing Manager	Jaime Yorres	Austria	1 2 3 4 5
3	Sales Consultant	Pascale Cartrain	Germany	1 2 3 4 5
4	Marketing Assistant	Patricio Simpson	Bulgaria	1 2 3 4 5
5	Marketing Assistant	Hanna Moos	Germany	1 2 3 4 5
6	Accounting Manager	Jaime Yorres	England	1 2 3 4 5
7	Marketing Manager	Pascale Cartrain	Brazil	1 2 3 4 5
8	Marketing Assistant	Howard Snyder	England	1 2 3 4 5
9	Sales Manager	Pascale Cartrain	USA	1 2 3 4 5
10	Owner	Hanna Moos	Bulgaria	1 2 3 4 5
11	Sales Agent	Pascale Cartrain	England	1 2 3 4 5
12	Sales Representative	Howard Snyder	Bulgaria	1 2 3 4 5
13	Sales Representative	Georg Pipps	Austria	1 2 3 4 5
14	Owner	Pascale Cartrain	Germany	1 2 3 4 5
15	Sales Associate	Patricio Simpson	England	1 2 3 4 5
16	Sales Associate	Matti Karttunen	Spain	1 2 3 4 5
17	Owner	Paul Henriot	Bulgaria	1 2 3 4 5
18	Marketing Manager	Patricio Simpson	USA	1 2 3 4 5
19	Marketing Manager	Hanna Moos	Spain	1 2 3 4 5
20	Sales Associate	Jaime Yorres	Italy	1 2 3 4 5
21	Accounting Manager	Antonio Moreno	Argentina	1 2 3 4 5
22	Marketing Assistant	Patricio Simpson	USA	1 2 3 4 5
23	Sales Manager	Howard Snyder	Argentina	1 2 3 4 5
24	Owner	Patricio Simpson	England	1 2 3 4 5
25	Sales Consultant	Jaime Yorres	Argentina	1 2 3 4 5
26	Sales Associate	Patricio Simpson	Italy	1 2 3 4 5
27	Accountant	Georg Pipps	Bulgaria	1 2 3 4 5
28	Marketing Assistant	Hanna Moos	Bulgaria	1 2 3 4 5
29	Sales Manager	Paul Henriot	Argentina	1 2 3 4 5
30	Sales Consultant	Georg Pipps	England	1 2 3 4 5
31	Sales Representative	Georg Pipps	Germany	1 2 3 4 5
32	Sales Agent	Hanna Moos	England	1 2 3 4 5
33	Marketing Assistant	Antonio Moreno	Spain	1 2 3 4 5
34	Marketing Assistant	Paul Henriot	Germany	1 2 3 4 5
35	Sales Manager	Patricio Simpson	Bulgaria	1 2 3 4 5
36	Marketing Assistant	Howard Snyder	England	1 2 3 4 5
37	Sales Representative	Matti Karttunen	USA	1 2 3 4 5
38	Sales Manager	Hanna Moos	France	1 2 3 4 5
39	Accountant	Georg Pipps	Bulgaria	1 2 3 4 5
40	Sales Associate	Patricio Simpson	Argentina	1 2 3 4 5
41	Accountant	Hanna Moos	Bulgaria	1 2 3 4 5
42	Marketing Manager	Pascale Cartrain	Bulgaria	1 2 3 4 5
43	Sales Associate	Jaime Yorres	Austria	1 2 3 4 5
44	Owner	Matti Karttunen	USA	1 2 3 4 5
45	Accountant	Howard Snyder	Italy	1 2 3 4 5
46	Sales Consultant	Paul Henriot	Argentina	1 2 3 4 5
47	Sales Manager	Matti Karttunen	Argentina	1 2 3 4 5
48	Sales Associate	Howard Snyder	USA	1 2 3 4 5
49	Sales Agent	Matti Karttunen	Italy	1 2 3 4 5
50	Marketing Assistant	Georg Pipps	Germany	1 2 3 4 5
51	Marketing Manager	Georg Pipps	Italy	1 2 3 4 5
52	Accountant	Elizabeth Lincoln	Spain	1 2 3 4 5
53	Sales Associate	Paul Henriot	England	1 2 3 4 5
54	Owner	Matti Karttunen	France	1 2 3 4 5
55	Sales Representative	Antonio Moreno	Spain	1 2 3 4 5
56	Accounting Manager	Hanna Moos	USA	1 2 3 4 5
57	Marketing Manager	Paul Henriot	Spain	1 2 3 4 5
58	Marketing Manager	Howard Snyder	Italy	1 2 3 4 5
59	Sales Associate	Pascale Cartrain	Bulgaria	1 2 3 4 5
60	Sales Manager	Elizabeth Lincoln	Bulgaria	1 2 3 4 5
61	Sales Consultant	Antonio Moreno	Brazil	1 2 3 4 5
62	Sales Agent	Elizabeth Lincoln	England	1 2 3 4 5
63	Accountant	Georg Pipps	Spain	1 2 3 4 5
64	Accountant	Antonio Moreno	France	1 2 3 4 5
65	Sales Associate	Patricio Simpson	Brazil	1 2 3 4 5
66	Accounting Manager	Hanna Moos	USA	1 2 3 4 5
67	Accountant	Jaime Yorres	Bulgaria	1 2 3 4 5
68	Accounting Manager	Antonio Moreno	Italy	1 2 3 4 5
69	Accountant	Matti Karttunen	Austria	1 2 3 4 5
70	Accounting Manager	Pascale Cartrain	France	1 2 3 4 5
71	Owner	Matti Karttunen	Spain	1 2 3 4 5
72	Sales Consultant	Antonio Moreno	USA	1 2 3 4 5
73	Sales Manager	Patricio Simpson	Argentina	1 2 3 4 5
74	Sales Representative	Matti Karttunen	Germany	1 2 3 4 5
75	Marketing Manager	Georg Pipps	Argentina	1 2 3 4 5
76	Accounting Manager	Matti Karttunen	USA	1 2 3 4 5
77	Marketing Assistant	Paul Henriot	Italy	1 2 3 4 5
78	Sales Agent	Howard Snyder	Austria	1 2 3 4 5
79	Marketing Assistant	Elizabeth Lincoln	Argentina	1 2 3 4 5
80	Accounting Manager	Hanna Moos	Argentina	1 2 3 4 5
81	Sales Associate	Patricio Simpson	USA	1 2 3 4 5
82	Accountant	Georg Pipps	Bulgaria	1 2 3 4 5
83	Sales Manager	Pascale Cartrain	France	1 2 3 4 5
84	Accounting Manager	Paul Henriot	Italy	1 2 3 4 5
85	Marketing Manager	Hanna Moos	Germany	1 2 3 4 5
86	Sales Manager	Howard Snyder	Bulgaria	1 2 3 4 5
87	Sales Agent	Hanna Moos	Brazil	1 2 3 4 5
88	Owner	Jaime Yorres	England	1 2 3 4 5
89	Accountant	Matti Karttunen	Italy	1 2 3 4 5
90	Owner	Jaime Yorres	Brazil	1 2 3 4 5
91	Accountant	Georg Pipps	Spain	1 2 3 4 5
92	Sales Consultant	Paul Henriot	Germany	1 2 3 4 5
93	Sales Manager	Antonio Moreno	England	1 2 3 4 5
94	Marketing Manager	Paul Henriot	USA	1 2 3 4 5
95	Sales Manager	Pascale Cartrain	England	1 2 3 4 5
96	Sales Manager	Matti Karttunen	Argentina	1 2 3 4 5
97	Sales Associate	Hanna Moos	USA	1 2 3 4 5
98	Owner	Matti Karttunen	Argentina	1 2 3 4 5
99	Sales Representative	Paul Henriot	Bulgaria	1 2 3 4 5
100	Sales Manager	Hanna Moos	Italy	1 2 3 4 5


...241 242 243 244 245 246 247 248 249 250 ... Item 247001 to 248000 of 300000 Page: of 300 GoPage size:

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Columns
- ID
- Contact Title
- Contact Name
- Country
- Rating

About this demo
C#
VB
Download demo code files
Isolate this demo as a stand-alone application

RadGrid's virtualization feature allows you to handle hundreds of thousands of rows without negatively impacting the user experience. The control achieves this thanks to its ItemsPerView property allowing you to control the number of items loaded at a time. Users can now scroll, as well as show, hide, resize and reorder columns without any waiting time.

This demo shows how quickly Telerik's ASP.NET DataGrid can handle user interactions with 300,000 items. You can configure the component to allow scrolling through the entire data set or only through the current page by using EnableCurrentPageScrollOnly property,.

<%@ Page Language="c#" CodeFile="DefaultCS.aspx.cs" Inherits="Telerik.GridExamplesCSharp.Performance.Virtualization.DefaultCS" %>

<%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>
<%@ Register TagPrefix="qsf" Namespace="Telerik.QuickStart" %>
<!DOCTYPE html>
<html xmlns='http://www.w3.org/1999/xhtml'>
<head runat="server">
    <title>Telerik ASP.NET Example</title>
    <link href="styles.css" rel="stylesheet" />
</head>
<body>
    <form id="form1" runat="server">
    <telerik:RadScriptManager runat="server" ID="RadScriptManager1" />
    <telerik:RadSkinManager ID="RadSkinManager1" runat="server" ShowChooser="true" />
    <telerik:RadAjaxLoadingPanel runat="server" ID="RadAjaxLoadingPanel1"></telerik:RadAjaxLoadingPanel>
    <telerik:RadAjaxPanel runat="server" ID="RadAjaxPanel" LoadingPanelID="RadAjaxLoadingPanel1" CssClass="demo-container">
        <telerik:RadGrid RenderMode="Lightweight" ID="RadGrid1" runat="server"  AutoGenerateColumns="false"
            AllowSorting="true" GroupingEnabled="false"
            EnableHeaderContextMenu="true" AllowPaging="true" PageSize="1000" OnNeedDataSource="RadGrid1_NeedDataSource">
            <MasterTableView TableLayout="Fixed">
                <Columns>
                    <telerik:GridBoundColumn UniqueName="ID" HeaderText="ID" HeaderStyle-Width="50px" DataField="ID"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactTitle" HeaderText="Contact Title" HeaderStyle-Width="150px" DataField="ContactTitle"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactName" HeaderText="Contact Name" HeaderStyle-Width="150" DataField="ContactName"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="Country" HeaderText="Country" HeaderStyle-Width="100px" DataField="Country"></telerik:GridBoundColumn>
                    <telerik:GridRatingColumn UniqueName="Rating" HeaderText="Rating" HeaderStyle-Width="100px" DataField="Rating"></telerik:GridRatingColumn>
                </Columns>
            </MasterTableView>
            <ClientSettings ReorderColumnsOnClient="true" AllowColumnsReorder="true" ColumnsReorderMethod="Reorder">
                <Virtualization EnableVirtualization="true" InitiallyCachedItemsCount="2000"
                    LoadingPanelID="RadAjaxLoadingPanel1" ItemsPerView="100"/>
                <Scrolling AllowScroll="true" UseStaticHeaders="true" ScrollHeight="500px" />
                <Resizing AllowColumnResize="true" />
            </ClientSettings>
            <PagerStyle Mode="NextPrevNumericAndAdvanced"></PagerStyle>
        </telerik:RadGrid>
    </telerik:RadAjaxPanel>
    </form>
</body>
</html>

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